{"product_id":"is200tproh1bbb-ge-mark-vi-turbine-overspeed-termination-module","title":"IS200TPROH1BBB GE Mark VI | Turbine Overspeed Termination Module","description":"\u003ch3\u003e\u003cstrong\u003eGeneral Electric \u003cspan style=\"color: #0056b3;\"\u003eIS200TPROH1BBB\u003c\/span\u003e Technical Profile\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe General Electric \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eIS200TPROH1BBB\u003c\/span\u003e\u003c\/strong\u003e is a high-reliability protective termination board designed for the Mark VI Speedtronic control system. This module serves as a critical hardware-level protection interface for heavy-duty industrial gas and steam turbines.\u003c\/p\u003e\n\u003cp\u003eThis board acquires and conditions critical field signals—including magnetic speed pickup outputs, generator voltages, bus voltages, and temperature inputs. It routes these vital process variables directly to the triple-redundant VPRO protection emergency controllers, establishing a localized, hardware-voted emergency overspeed and synchronization safety loop.\u003c\/p\u003e\n\u003cp\u003eBuilt on a robust, rectangular printed circuit board (PCB), the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eIS200TPROH1BBB\u003c\/span\u003e\u003c\/strong\u003e features two heavy-duty black terminal blocks accommodating 48 silver metallic contacts. The board incorporates two red safety relays, solid-state metal oxide varistors (MOVs) for transient voltage clamping, and multiple blocking diodes to prevent signal back-feeding in redundant power circuits.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe General Electric \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eIS200TPROH1BBB\u003c\/span\u003e\u003c\/strong\u003e is a foundational safety block in Mark VI turbine automation. Its design separates emergency trip logic from the main controller cores, ensuring that turbine overspeed or generator out-of-sync events trigger a hardware trip even if the primary control system suffers a complete processor lockup.\u003c\/p\u003e\n\u003cp\u003eThe hardware layout uses separate, individual diodes and capacitors rather than consolidated surface-mount arrays. This design choice makes it highly resistant to the thermal stresses and vibrations found near turbine decks.\u003c\/p\u003e\n\u003cp\u003eBy routing signals to three independent VPRO channels simultaneously, this board supports a 2-out-of-three (2oo3) voting architecture. This setup prevents false trips from single-point sensor failures while ensuring the safety system trips reliably when real hazards occur.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eConfiguration Breakdown (Part Number Structural Tree)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe functional assembly classification of the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eIS200TPROH1BBB\u003c\/span\u003e\u003c\/strong\u003e protective termination board is structured below:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIS200\u003c\/strong\u003e — General Electric Internal Product Family Series Code (Mark VI System Component)\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eTPRO\u003c\/strong\u003e — Turbine Protection Terminal Board with dedicated speed and synchronization signal routing\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eH1\u003c\/strong\u003e — Group 1 hardware revision level, standard layout configuration\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eBBB [This Model]\u003c\/strong\u003e — Minor board assembly revision level, signifying updated component footprints and specific trace changes\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOn-Board Functional Architecture:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eInput Interface:\u003c\/strong\u003e Dual heavy-duty terminal blocks (96 terminals, labeled 1 to 48 on each block)\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eClamping \u0026amp; Suppression:\u003c\/strong\u003e High-energy metal oxide varistors (MOVs) paired with precision potentiometers (R-labeled)\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSafety Output:\u003c\/strong\u003e Red square containment relays with high-visibility mechanical status indicators\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTarget Equipment \u0026amp; Plant Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eUtility Gas Turbines:\u003c\/strong\u003e Serving as the physical interface for emergency overspeed trips on large power-generation units.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eIndustrial Steam Turbines:\u003c\/strong\u003e Handling generator synchronization loops and monitoring steam inlet valve trip solenoids.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eMechanical Drive Turbines:\u003c\/strong\u003e Protecting high-speed compressors from sudden load drops and subsequent overspeed conditions.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eEmergency Trip Systems:\u003c\/strong\u003e Driving positive-side control lines on TREG, TRES, or TRES terminal boards connected to 125 Vdc trip solenoids.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eDiagnostic Capabilities \u0026amp; Signal Routing\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eRedundant Signal Split-Out:\u003c\/strong\u003e Splits single-point speed inputs into three identical isolated loops to supply VPRO boards (X, Y, and Z).\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eOvervoltage Clamping:\u003c\/strong\u003e Integrated metal oxide varistors (MOVs) clamp transient spikes from solenoid inductive kickback or field wiring surges.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eCoordinated Relay Verification:\u003c\/strong\u003e Visually monitors relay states with on-board indicators to ensure correct signal routing during automated test sequences.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications Table\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n      \u003cth style=\"text-align: left; padding: 10px; font-weight: bold; border-bottom: 2px solid #dee2e6;\"\u003eSpecification Category\u003c\/th\u003e\n      \u003cth style=\"text-align: left; padding: 10px; font-weight: bold; border-bottom: 2px solid #dee2e6;\"\u003eTechnical Parameters\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; font-weight: bold; border-bottom: 1px solid #dee2e6;\"\u003eBrand \/ Manufacturer\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #dee2e6;\"\u003e\u003cstrong\u003eGeneral Electric (GE)\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; font-weight: bold; border-bottom: 1px solid #dee2e6;\"\u003eFull Part Number\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #dee2e6;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eIS200TPROH1BBB\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; font-weight: bold; border-bottom: 1px solid #dee2e6;\"\u003eSeries Classification\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #dee2e6;\"\u003eSpeedtronic Mark VI Turbine Control\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; font-weight: bold; border-bottom: 1px solid #dee2e6;\"\u003eProduct Function Type\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #dee2e6;\"\u003eTurbine Emergency Protection Terminal Board\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; font-weight: bold; border-bottom: 1px solid #dee2e6;\"\u003eVPRO Compatibility\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #dee2e6;\"\u003eInterfaces directly with Triple Redundant VPRO protection modules\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; font-weight: bold; border-bottom: 1px solid #dee2e6;\"\u003eOperating Temperature Range\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #dee2e6;\"\u003e-30°C to +65°C (-22°F to +149°F) continuous operational envelope\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; font-weight: bold; border-bottom: 1px solid #dee2e6;\"\u003ePhysical Dimensions\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #dee2e6;\"\u003e17.8 cm High x 33.02 cm Wide (7 in x 13 in)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; font-weight: bold; border-bottom: 1px solid #dee2e6;\"\u003eAssembly Components\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #dee2e6;\"\u003e2 x 48-point terminal blocks, 2 x red relays, MOVs, capacitors, blocking diodes\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 10px; font-weight: bold; border-bottom: 1px solid #dee2e6;\"\u003eCountry of Origin\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border-bottom: 1px solid #dee2e6;\"\u003eUnited States of America (USA)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003eGlobal Logistics, Delivery \u0026amp; Warranty Terms\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003ePriority Shipping:\u003c\/strong\u003e Direct global dispatch via express carriers DHL, FedEx, and UPS loops.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eDispatch SLA:\u003c\/strong\u003e In-stock hardware is packaged and shipped within 24 to 48 hours of verification.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eWarranty Terms:\u003c\/strong\u003e Covered by a comprehensive 12-month replacement warranty from Global PLC Spare HUB.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eStrategic Procurement \u0026amp; Selection Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eRevision Matching:\u003c\/strong\u003e Verify the three-letter suffix on your existing board. While the \u003cstrong\u003eIS200TPROH1BBB\u003c\/strong\u003e is backwards-compatible with older TPROH1AAA versions, check your system's documentation for any field wiring changes before replacement.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eRedundant Cabling Validation:\u003c\/strong\u003e Ensure your J-connectors and terminal board cables are fully shielded. Any electromagnetic noise on the speed or generator voltage lines can cause false VPRO voting and lead to unexpected turbine trips.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003eConfirm Solenoid Voltages:\u003c\/strong\u003e This termination board manages positive-side loops for 125 Vdc trip solenoids. Verify that your TREG, TREL, or TRES boards are properly set up for this voltage level.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eIndustrial Frequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the functional division of labor between the TPRO board and the VPRO board?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The \u003cstrong\u003eTPRO\u003c\/strong\u003e acts as the physical terminal card that gathers, filters, and distributes field inputs like speed and voltage. The \u003cstrong\u003eVPRO\u003c\/strong\u003e contains the processors that evaluate this data, run the trip logic, and open the safety relays.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do the physical, red-cased MOVs on the TPRO board protect the system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: These metal oxide varistors clamp high-voltage spikes caused by switching inductive loads (like solenoids or large relays). This protects the board's solid-state electronics from damage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the three potentiometers in the upper right corner of the board used for?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: These variable resistors are factory-calibrated to tune the impedance and signal levels of the speed pickup circuits, ensuring clean signal detection without false trigger points.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can the turbine run if one of the three VPRO signal loops connected to the TPRO fails?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. The Mark VI protection loop uses 2-out-of-3 (2oo3) logic. If one channel loses its signal from the TPRO, the remaining two healthy channels can still protect the machine without causing a nuisance trip.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Why does the TPRO feature a high-density terminal layout with 96 connection points?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The 96 points accommodate all redundant sensor wiring, including dual magnetic speed pickups, multiple thermocouple lines, and generator\/bus voltage feedback. This allows all emergency protection wiring to terminate on a single, easy-to-manage card.\u003c\/p\u003e","brand":"GE","offers":[{"title":"Default Title","offer_id":45267547947190,"sku":"IS200TPROH1BBB","price":263.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/IS200TPROH1BBB.jpg?v=1784280683","url":"https:\/\/www.plcsparehub.com\/products\/is200tproh1bbb-ge-mark-vi-turbine-overspeed-termination-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}